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Australian Biological Resources Study

Checklist of the Lichens of Australia and its Island Territories
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References
Verrucaria operculata P.M.McCarthy
  Muelleria 7: 324 (1991). T: by the Lincoln Highway, 17 km S of Cowell, Eyre Peninsula, S.A., 23 Oct. 1970, R.B.Filson 11794; holo: MEL.  
  Thallus endolithic, inconspicuous, pale grey. Algae globose, 7–14 mm diam. Prothallus not apparent; basal layer absent. Perithecia almost completely immersed, leaving pits in the limestone following their decay, 0.2–0.4 mm diam.; apex plane to slightly convex; ostiole inconspicuous or in a 25–50 µm depression. Involucrellum apical, lid-like, extending laterally, then sharply downwards, black, occasionally with 3–5 fissures radiating from the ostiole. Exciple 35–45 µm thick, hyaline at the base and sides, brown-black near the apex. Centrum 0.23–0.42 mm wide. Periphyses 30–40 × 1.5–2 µm. Asci c. 78 × 31 µm. Ascospores narrowly to broadly ellipsoidal, 20–32 × 9–15 µm.
  An endemic species that is known from coastal and semi-arid inland limestone at two localities in S.A.  
  S.A.: Yudnapinna Stn, R.W.Rogers 32 (AD).  
  McCarthy (2001h)  

Checklist Index
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References

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